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BEUJAMlN WAIN WRIGHT, EAST BUSTON, MASSACHUSETTS.

Letters Patent No. 62.570, (lated durch 5, 1857.

IMPROVEMENT IN RIB-KNITTNG LOOMS.

TO ALL PERSONS TO WHOM THESE PRESENTS SHALL COME:

Be it known that I, BENJAMIN Wnrnwnronr, of East Boston, in the county of' Suffolk, and State of Massuchusctts, have made a new and useful invention, having reference to Rib-Knitting Looms; and T do hereby declare the same te be fully described in the following specification, and represented in the accompanying drawings, of which- Figure 1 is a top View; and

Figure 2, a front elevation of a knitting loom rib-needle frame, and my mechanism applied thereto for the purpose of imparting to it lateral .movements, to cause the production of what is termed shogged Work," or serpentine ribs in the fabric.

Herletot'ore the shogged Work or serpentine ribs were performed or produced by the attendant on the loom, who, in order to eiect this result, had to lay hold of and move the rib-needle frame laterally of the loom, first in one direction, and afterward in the opposite one. These opera-tions required his constant attention during that of knitting a ribbed fabric. He could produce the plain rib without any such movement ot' the frame.

vThe purpose of my invention is to eiect by mechanism the necessary lateral movements of the rib-needle frame lto cause the waved or serpentine rib or shogged work to be performed or made, and thus to relieve the operator of the loom from all necessity of moving the rib-needle frame laterally, or otherwise than he would in making plain ribbed Work.

In the drawings, A denotes a portion or" the frame of a knitting loom. B is the ribneedle frame, which is supported by and so as to be capable of turning on pins a a, projecting from a horizontal vibratory or rockerframe or carrier C, which, in turn, is supported by pivots l; b, and has depressing springs c c applied to its arms d d. The rib-n eedle frame Bis to slide laterally as well as to turn on the pins a ct. The mechanism for effecting the lateral motions of the frame B may be thus described: Dvis a ratchet, supported on astationary centrepin,f, and having a series of cams, g g g, or a cammed wheel, F, applied to one side of it, and so as to project vfrom it as represented. E is a lever, which is supported on a stationary fulcrum, h, and sustains, by means of .an adjustable carrier, t', fixed to its lower arm, a small wheel or roller, 7c, to act against the periphery ofthe cam-wheel F. The upper arm f the lever E is connected with the frame B by means of a connection-rod G, which is to be so jointed or applied o o both the lever and frame as to allow of the usual turning or vibratory .and up-anddown movements of the said frame, without, in the meanwhile, causing any movement of the lever. An arm, H, projects from the bracket I, by which the ratchet centre-pin is supported, and serves to sustain the fulcrum Z ofa lever, K, which has jointed to its shorter arm a small pawl, m, to operate the ratchet, there being fixed to the lever a spring, n, to bea-r the pawl up to the ratchet. From the rocker-frame C an arm, L, extends downward, and carries an adjustable T-piece, M, (formed as shown in side view in iig. 3,) which extends directly .over the longer arm of the pawl-lever K. When a workman moves the rockerframe C, with the needle-frame B, downward, he will cause the T-piece to be forced down upon the lever K, so as to move it, and cause it, by means of the pawl, to produce a slight rotary motion ofthe ratchet. A helical spring, N, has one end fixed to the frame B, and the other to an arm, O, extended from the loom frame, the whole being as represented. Furthermore, -a weight, P, is suspended from the shorter arm of the lever K, 'and serves to produce what may be termed counter-movements of the said lever. From the above it will be seen that the intermittent rotary movements of the ratchet are dependent on the vertical movements of the carrier C, and that the cams g g of the cam-wheel F are to operate against the roller k, in order 'to eiect, by means of the lever E, and the connection-rod Gr, lateral movements in one direction of the frame B, its lateral movements in the opposite direction being electcd by the spring N.

What I claim as my invention, is

The combination, substantially as described, `for' eiecting the endwise movements of the needle-frame B, such combination consisting mainly of the ratchet D, its series of cams g g g, or cammed wheel F, the lever K, and its pawlm, the lever E, thc connectionaod'G, the spring N, the weight P, and the arm L, and its T-piece M, the whole being applied to the frame B, its carrier C, and the loom-frame A, substantially in manner and so as to operate as and for the purpose specified. i v

BENJAMIN WAINWRGHT.

Witnesses:

R. H. EDDY,

F. P. HALE, Jr. 

